文献类型：期刊文献

英文题名：Isolation, physicochemical and structural characterisation of a novel natural zinc polysaccharide from Crassostrea hongkongensis

作者：Chen, Zhongqin[1,2,3,4,5,6]; Han, Rong[1]; Zhou, Longjian[1]; Lin, Haisheng[1,3,4,5,6]; Cao, Wenhong[1,3,4,5,6]; Gao, Jialong[1,3,4,5,6]; Zheng, Huina[1,2,3,4,5,6]; Zhang, Chaohua[1,3,4,5,6]; Qin, Xiaoming[1,3,4,5,6]

机构：[1] College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524088, China; [2] Shenzhen Institute of Guangdong Ocean University, Shenzhen, 518120, China; [3] National Research and Development Branch Center for Shellfish Processing [Zhanjiang], Zhanjiang, 524088, China; [4] Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Seafood, Zhanjiang, 524088, China; [5] Guangdong Province Engineering Laboratory for Marine Biological Products, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang, 524088, China; [6] Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034, China

年份：2022

卷号：57

期号：12

起止页码：7872

外文期刊名：International Journal of Food Science and Technology

收录：EI(收录号：20224513069819)、Scopus(收录号：2-s2.0-85141354567)

语种：英文

外文关键词：Fourier transform infrared spectroscopy - II-VI semiconductors - Physicochemical properties - Sulfur compounds - Zinc - Zinc oxide

外文摘要：A novel natural zinc-enriched polysaccharide: OZPs-1 was isolated from oyster (Crassostrea hongkongensis), with 922.18 μg g?1 of zinc. The physicochemical properties and structural features of OZPs-1 were systematically studied. The results showed OZPs-1 was predominantly composed of glucose, with a molecular weight ranging from 4 to 2044 kDa. OZPs-1 showed favourable thermal stability. NMR analysis showed that there was no sulphate substitution and C-6 substitution in OZPs-1, while C-4 might be the binding site of zinc and polysaccharide. UV, FTIR and XRD spectra suggested -OH and -COOH group might be involved in the binding of zinc to polysaccharides in OZPs-1 and there were no ZnO and sulphate substitutions in OZPs-1. These conclusions indicated that zinc might bind with -OH and -COOH in C-4 of polysaccharides and impart the stable structure and favourable physicochemical properties of OZPs-1, which could facilitate the application of OZPs-1 as natural organic zinc supplements. ? 2022 Institute of Food, Science and Technology (IFSTTF).